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Posted to commits@buildr.apache.org by "Daniel Spiewak (JIRA)" <ji...@apache.org> on 2009/02/19 17:42:02 UTC

[jira] Closed: (BUILDR-229) Improve Scala Source Change Detection

     [ https://issues.apache.org/jira/browse/BUILDR-229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Spiewak closed BUILDR-229.
---------------------------------

    Resolution: Won't Fix

> Improve Scala Source Change Detection
> -------------------------------------
>
>                 Key: BUILDR-229
>                 URL: https://issues.apache.org/jira/browse/BUILDR-229
>             Project: Buildr
>          Issue Type: New Feature
>          Components: Compilers
>    Affects Versions: 1.4
>            Reporter: Daniel Spiewak
>            Priority: Minor
>
> To my knowledge, Buildr currently bases its decision on which Scala files to compile based on simple file change heuristics (modified timestamp).  Because Scala produces such a massive number of .class files, this can sometimes lead to longer-than-necessary compilation times.  SBT (simple-build-tool) contains a rather innovative feature which actually bundles a Scala compiler plugin to optimize these recompilation heuristics.  Specifically: http://code.google.com/p/simple-build-tool/source/browse/trunk/src/main/scala/sbt/Analyzer.scala
> I'm not entirely clear yet on how it works, but it seems like it would do much to improve Buildr's rather-lengthy Scala build times.

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